Figure 1. Distribution of likelihood for randomized genetic codes.

Figure 1

Distribution of likelihood for randomized genetic codes. The lines correspond to the different models for random codes described in the section on “statistical evidence for triplet/binding site associations.” The gray line at the right (G = 51.5) gives the position of the actual code: very few randomized codes give a higher association between ‘codons’ and binding sites, making it highly unlikely that the observed association for the real code is due to chance. The “n-block” line (x) is skewed strongly to the right, because some codons can occupy relatively few blocks under this model. Thus nblock randomization preserves many similarities to the real code.

From: Tests of a Stereochemical Genetic Code

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